Driver problem

I am struggling to get a driver for a Toshiba Satellite C855-1W3 its the SM BUS controller,the laptop suffered a hard drive failure and was on windows 8 i put a new drive in and installed win7 ultimate all other drivers are fine so far i have flashed to the latest bios and also the same with the chipset drivers i have tried all the appropriate drivers from the Toshiba site to no avail as you will no without this i can’t get the usb ports to operate rendering the laptop pretty useless any help would be appreciated.
Answer #1
What is the hardware ID (device manager / double-click sm bus controller line / details, select hardware ID from the drop down).
You can almost always google that ID to find the driver.
Answer #2
Are the USB ports listed inside the device manager?
Answer #3
You could try IObit Driver Booster Pro to find your drivers.
Helped me out and it’s from a respectable software maker!
http://www.google.com?t=20143787&highlight=
Answer #4
I am struggling to get a driver for a Toshiba Satellite C855-1W3 its the SM BUS controller,the laptop suffered a hard drive failure and was on windows 8 i put a new drive in and installed win7 ultimate all other drivers are fine so far i have flashed to the latest bios and also the same with the chipset drivers i have tried all the appropriate drivers from the Toshiba site to no avail as you will no without this i can't get the usb ports to operate rendering the laptop pretty useless any help would be appreciated.try this, it has worked for someone. http://forums.toshiba.com/t5/Drivers-and-Utilities/SM-Bus-Driver-for-Windows-7-on-C855D-S5303/m-p/352958#M15701